from dataclasses import dataclass

from pydantic import BaseModel, ConfigDict, Field, field_validator

from app.common.enums import QueueEnum
from app.core.base_schema import BaseSchema


class PluginCreateSchema(BaseModel):
    """新增插件"""

    name: str = Field(..., min_length=1, max_length=100, description="插件名称")
    code: str = Field(..., min_length=1, max_length=50, description="插件编码（如 module_xxx）")
    description: str | None = Field(default=None, max_length=255, description="插件描述")
    version: str = Field(default="1.0.0", max_length=20, description="版本号")
    author: str | None = Field(default=None, max_length=100, description="作者")
    icon: str | None = Field(default=None, max_length=500, description="图标URL")
    category: str = Field(
        default="tool", max_length=20, description="分类(tool/ai/monitor/business)"
    )
    price: int = Field(default=0, ge=0, description="价格(分，0=免费)")
    menu_path: str | None = Field(default=None, max_length=200, description="菜单路径")
    permission_prefix: str | None = Field(default=None, max_length=100, description="权限前缀")
    dependencies: str | None = Field(default=None, description="依赖插件编码(JSON数组)")
    sort: int = Field(default=0, ge=0, description="排序")

    @field_validator("category")
    @classmethod
    def _validate_category(cls, v: str) -> str:
        allowed = {"tool", "ai", "monitor", "business"}
        if v not in allowed:
            raise ValueError(f"插件分类仅支持 tool、ai、monitor、business，当前值: {v}")
        return v

    @field_validator("version")
    @classmethod
    def _validate_version(cls, v: str) -> str:
        import re
        if not re.match(r"^\d+\.\d+\.\d+$", v):
            raise ValueError("版本号格式需为 x.y.z（如 1.0.0）")
        return v

    @field_validator("code")
    @classmethod
    def _validate_code(cls, v: str) -> str:
        v = v.strip()
        if not v:
            raise ValueError("插件编码不能为空")
        return v


class PluginUpdateSchema(PluginCreateSchema):
    """更新插件 — 所有字段可选"""

    name: str | None = Field(default=None, max_length=100, description="插件名称")  # type: ignore[assignment]
    code: str | None = Field(default=None, max_length=50, description="插件编码")  # type: ignore[assignment]
    status: int | None = Field(default=None, ge=0, le=1, description="状态(0:正常 1:禁用)")

    @field_validator("status")
    @classmethod
    def _validate_status(cls, v: int | None) -> int | None:
        if v is None:
            return v
        if v not in {0, 1}:
            raise ValueError("状态仅支持 0(正常) 或 1(禁用)")
        return v


class PluginOutSchema(PluginCreateSchema, BaseSchema):
    """插件响应"""

    model_config = ConfigDict(from_attributes=True)

    installed: bool = False  # 当前租户是否已安装


class PluginInstallSchema(BaseModel):
    """安装/卸载插件"""

    plugin_id: int = Field(..., description="插件ID")


@dataclass
class PluginQueryParam:
    """插件查询参数"""

    def __init__(
        self,
        name: str | None = None,
        category: str | None = None,
        status: str | None = None,
    ) -> None:
        if name:
            self.name = (QueueEnum.like.value, name)
        if category:
            self.category = (QueueEnum.eq.value, category)
        if status:
            self.status = (QueueEnum.eq.value, status)